Code & steps to replicate the issue.

1. At the initial load, the TargetButton is enabled.
2. Click the "Toggle Enabled State and Do PostBack" which will disable the button using the set_enabled property and do a PostBack. 
3. Click again on the "Toggle Enabled State and Do PostBack" to enable the TargetButton and do another PostBack.
4. While the TargetButton gets enabled via JavaScript, the server still renders the Button as disabled after the PostBack.

<telerik:RadButton runat="server" ID="RadButton1" Text="Target Button" AutoPostBack="true" EnableViewState="true" />
<br />
<br />
<telerik:RadButton runat="server" ID="RadButton2" Text="Toggle Enabled State and Do PostBack" OnClientClicked="toggleEnabledState" AutoPostBack="true" />

<script>
    function toggleEnabledState(sender, args) {
        var radButton1 = $find("<%=   RadButton1.ClientID %>");

        radButton1.set_enabled(!radButton1.get_enabled());
    }
</script>

Using the latest 2022.3.1109.45, our web application is catching "Invalid Resource Request" exceptions when the Windows7 or Vista (maybe others too) loads the "Editor" control in "Classic" mode.    By decoding the URL, the control is having problems locating the image below

WebResource.axd?d=ZHkUja8e5EF7zNoz8IiY_kAGH7MBQgCnq0BEYT2AtFLv57GDfGbEymwRG8H68WuiE_6l2fpZpqb_FzVc_OItknX-LMTzvQOwC0Mk8HaCtGvNzWl-5nNlZ6xpbOjNSk4A0QtPGtyV0UA-BWX4bOfPU8EI30eAVg8UO6p7yERiuEbCUoiZOGUevYGPdrNVvPel0&t=638034624000000000
Error Message: This is an invalid webresource request.

Telerik.Web.UI.Skins|Telerik.Web.UI.Skins.Vista.Editor.ToolbarVerticalSprites.gif

Telerik.Web.UI.Skins|Telerik.Web.UI.Skins.Windows7.Editor.ToolbarSprites.gif

Change the skin of the radeditor in the default.aspx to another skin such as "metro" and the problem will not happen.    It works OK at least on Black, Metro and Silk but haven't tested others, you can tell it doesn't work when the divider bars in the editor toolbar don't appear properly.

Similar to the property in the ComboBox

Hi, 

i am getting below error when i try to build my solution in VS2019. Please help how this can be fixed.

Hello,

I can't tell you how long we've racked our brains trying to figure this issue out. We are using the Bootstrap theme for RadListView and are doing drag and drop. We've been getting a "This is an invalid webresource request. " error when first dragging an item on the page.

I just came across this article which provided me some new guidance:
https://feedback.telerik.com/aspnet-ajax/1586960-windows7-and-vista-skins-generate-application-error-when-using-editor-control

And we decrypted the querystring of the WebResource request and it is looking for this:

pTelerik.Web.UI.Skins|Telerik.Web.UI.Skins.Bootstrap.ListView.drag.gif

When we change our RadListView skin to "Default" or "Black", this drag and drop error is gone so there clearly must be a broken link/reference for that image because we also see the little drag and drop cross overlaying the items we are dragging.

Thank you,

Curtis

Instead of having the property to select single or multiple it would be more productive to have a property called SelectCount and we can enter the amount of listings to be selected. If its a single I select 1... for multiple I select how many I need. No more need for the Single/Multiple property except for backward compatibility.

You can workaround this issue with the following CSS rule.

<style>
    div.RadGrid .t-font-icon{
        font: 16px/1 "TelerikWebUI";
    }
</style>

Scenario: need dynamically change header test on dropdown change, while retaining HeaderContext filter type icon

After conversation with support created this request

RadComboBox Bootstrap Lightweight skin is not loading in version 2022.3.913

Workarounds provided by Admin:

Option 1

Use RadStyleSheetManager to load the correct stylesheet from Telerik.Web.UI.Skins assembly, as per the instructions in Skin registration with RadStyleSheetManager:

<telerik:RadStyleSheetManager runat="server" ID="RadStyleSheetManager">
    <StyleSheets>
            <telerik:StyleSheetReference Name="Telerik.Web.UI.Skins.BootstrapLite.ComboBOx.Bootstrap.css" Assembly="Telerik.Web.UI.Skins" />
    </StyleSheets>
</telerik:RadStyleSheetManager>

Option 2

Link the correct stylesheet manually on the page in one of the following ways:

• By using the attached stylesheet file.
• Via the Telerik CDN link: https://d35islomi5rx1v.cloudfront.net/ajaxz/2022.3.913/BootstrapLite/ComboBOx.Bootstrap.css

Support for NavigateUrl as implemented in other controls like RadLightBox. The idea is to redirect to a specific URL when clicking on an image.

http://demos.telerik.com/aspnet-ajax/editor/examples/overview/defaultcs.aspx
Clear content;
Add a table;
Open context menu by selecting a cell in the table;
Open Cell Properties;
Open More cell Styling;
Chose Background color;
Change it and click OK
Click OK in Table Wizard.
Actual: No background color is applied. 

Test Environment:

OS: Windows_11

Tool: Colour Contrast Analyser (Version 3.1.2)                                                                                                                                                                                                                                                                                                                                                                                                                                        Repro Steps:                                                                                                                                                                                                                                                                                                                                                                                                                                                                              1. 1.Open URL: https://demos.telerik.com/aspnet-ajax/datepicker/overview/defaultcs.aspxpage in Edge Browser.

Actual Behavior:

Luminosity contrast ratio for 'selected date' on Calander is 1.6:1 which is less than 4.5:1.

Expected Behavior:

Contrast ratio for the text must be greater than or equal to 4.5:1.                                         

For the time being you can set the types through the kendoWidget:
		<telerik:RadCodeBlock ID="RadCodeBlock1" runat="server">
			<script>
				function pageLoad() {
					var chart = $find('<%=RadHtmlChart1.ClientID%>');
					chart._chartObject.options.series[0].type = "verticalLine";
					chart.repaint();
				}
			</script>
		</telerik:RadCodeBlock>
		<telerik:RadHtmlChart runat="server" ID="RadHtmlChart1" Width="600px" Height="400px">
			<PlotArea>
				<Series>
					<telerik:LineSeries Name="Product 1">
						<SeriesItems>
							<telerik:CategorySeriesItem Y="15000" />
							<telerik:CategorySeriesItem Y="23000" />
							<telerik:CategorySeriesItem Y="10000" />
						</SeriesItems>
					</telerik:LineSeries>
				</Series>
				<XAxis>
					<Items>
						<telerik:AxisItem LabelText="1" />
						<telerik:AxisItem LabelText="2" />
						<telerik:AxisItem LabelText="3" />
					</Items>
				</XAxis>
			</PlotArea>
			<ChartTitle Text="Product sales for 2011">
			</ChartTitle>
			<Legend>
				<Appearance Position="Bottom" />
			</Legend>
		</telerik:RadHtmlChart>

For the time being the function can be set through the kendoWidget:
ASPX:
		<telerik:RadScriptManager ID="RadScriptManager1" runat="server"></telerik:RadScriptManager>
		<script>
			function pageLoad() {
				var chart = $find("<%=RadHtmlChart1.ClientID%>");
				chart._chartObject.options.series[0].markers.type = function (point) {
					if (point.value > 2) {
						return "triangle";
					}
					else {
						return "circle";
					}
				};
				chart.repaint();
			}
		</script>
		<telerik:RadHtmlChart runat="server" ID="RadHtmlChart1" Width="600px" Height="400px">
			<PlotArea>
				<Series>
					<telerik:LineSeries Name="Product 1">
						<SeriesItems>
							<telerik:CategorySeriesItem Y="1" />
							<telerik:CategorySeriesItem Y="2" />
							<telerik:CategorySeriesItem Y="3" />
						</SeriesItems>
					</telerik:LineSeries>
				</Series>
				<XAxis>
					<Items>
						<telerik:AxisItem LabelText="1" />
						<telerik:AxisItem LabelText="2" />
						<telerik:AxisItem LabelText="3" />
					</Items>
				</XAxis>
			</PlotArea>
			<ChartTitle Text="Product sales for 2011">
			</ChartTitle>
			<Legend>
				<Appearance Position="Bottom" />
			</Legend>
		</telerik:RadHtmlChart>

I suggest to allow developers to customize the GridColumnGroup header. 

Custom column group headers should be a built-in feature of the RadGrid.

Test Environment: